BEIJING/SHANGHAI (Reuters) – China’s economy grew at its slowest pace in 24 years in 2014 as a cooling property market weighed on demand and is expected to lose more momentum this year, keeping pressure on policymakers to head off a sharper downturn. China’s economy grew 7.4 percent in 2014, official data showed on Tuesday, barely missing its official 7.5 percent target but the slowest since 1990.